Results 71 to 80 of about 4,697,846 (248)
, 2006 In this contribution, we study a reduced-complexity multiuser detection aided multicarrier direct-sequence code-division multiple-access (MC DS-CDMA) scheme, which employs both time (T)-domain and frequency (F)-domain spreading.
Hanzo, L., Wei, H., Yang, L-L.
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Journal of Experimental Zoology Part A: Ecological and Integrative Physiology, Volume 345, Issue 5, Page 498-507, June 2026.We demonstrated that Awaous tajasica performs facultative air breathing under experimental conditions of dissolved oxygen limitation, retaining air bubbles in the buccal cavity during gill ventilation. Morpho‐functional evidence indicates the use of atmospheric oxygen as a respiratory support under conditions of low water oxygenation.
João Pedro Trevisan +3 more
wiley +1 more source
IEEE Access, 2018 To mitigate the inter-symbol interference (ISI), multiple access interference (MAI), and the effect of different Doppler shifts within a data package incurred in variably mobile asynchronous underwater multiuser communications (VMAUMC), a Kalman filter ...
Guang Yang +4 more
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Environmental Quality Management, Volume 35, Issue 4, Summer 2026.We meta‐analyzed 10 studies to assess whether influent flow rate affects SARS‐CoV‐2 RNA detection in wastewater treatment plants serving ≤60,000 inhabitants. The pooled odds ratio (2.08; 95% CI: 0.994–37; p = 0.053) showed no significant association between flow rate and detection probability.
André Felipe Bendix +9 more
wiley +1 more source
Environmental Quality Management, Volume 35, Issue 4, Summer 2026.ABSTRACT Microplastic (MP) pollution represents a growing environmental challenge, especially in tropical and subtropical coastal regions of the Global South, where methodological fragmentation, funding discontinuity, and dependence on external analytical infrastructure limit the production of comparable data and the formulation of evidence‐based ...
Guilherme Malafaia +1 more
wiley +1 more source
LDPC encoding performances for fading suppression in MIMO-CDMA wireless networks
EAI Endorsed Transactions on Mobile Communications and Applications, 2018 In multiuser wireless communication systems, signal recovery, even at low BER is a relevant factor for ensuring a safe and reliable communication. Efforts for interference minimization include multiple analysis of source coding/decoding techniques ...
Ioana Marcu +3 more
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Multiuser Detection and Channel Estimation for Multibeam Satellite Communications
, 2012 In this paper, iterative multi-user detection techniques for multi-beam communications are presented. The solutions are based on a successive interference cancellation architecture and a channel decoding to treat the co-channel interference.
Bouallegue, Ridha, Chaouech, Helmi
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Blind multiuser deconvolution in fading and dispersive channels [PDF]
, 1995 An adaptive near-far resistant technique for the blind joint multiuser identification and detection in asynchronous CDMA systems is analyzed in fading and dispersive GSM channels.Peer ReviewedPostprint (published ...
Rodríguez Fonollosa, Javier +3 more
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Nanophotonics, Volume 15, Issue 9, 13 May 2026.Mechanically reconfigurable metasurfaces enable high‐capacity optical storage and holography due to low cost/complexity. A differentiable inverse design framework maps meta‐atom geometries to multichannel optical responses via deep neural networks. Rotatable cascaded metasurfaces optimized through this pipeline achieve pixel‐level holography with 288 ...
Ting Ma +4 more
wiley +1 more source
Methodology and Implementation on DSP of Heuristic Multiuser DS/CDMA Detectors
Semina: Ciências Exatas e Tecnológicas, 2010 The growing number of users of mobile communications networks and the scarcity of the electromagnetic spectrum make the use of diversity techniques and detection/decoding efficient, such as the use of multiple antennas at the transmitter and/or receiver,
Alex Miyamoto Mussi +2 more
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